|
Incident ID |
SC01064-3505 |
|
Dam Name |
COLUMBIA EMBANKMENT AND CANAL SPILLWAY |
|
Downstream Hazard Potential |
S |
|
State |
SC |
|
Incident Date |
10/04/2015 |
|
Incident Type |
Failure |
|
Incident Driver |
Malfunction Of Equipment/gate |
|
Incident Mechanism 1 |
Debris Clogging |
|
Incident Mechanism 2 |
Insufficient Spillway Capacity |
|
Incident Mechanism 3 |
Overtopping |
|
Incident Description |
Breach of 125 yr old canal dike due to debris stuck beneath canal headgates prevent gate closure. Canal embankment overtopped and failed. |
|
Named Hydrologic Event |
Hurricane Joaquin |
|
EAP Enacted (Y/N) due to Incident |
Yes |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
None |
|
Economic Damages (in $) |
$50 million to $100 million |
|
Volume released at failure (ac-ft) |
|
|
Response |
Temp water supply pipes & pumps. Cofferdam across canal. Installed bulkheads upstream of headgates. |
|
Additional Remarks or Updates |
No impact to Infracture. Loss of hydropower Threatened loss to municiple water supply. |
|
Incident Time |
8:00 PM |
|
Incident Duration |
|
|
Incident Report Produced |
Yes |
|
Information Sources |
ASDSO Decade Dam Series |
|
Owner Type |
L |
|
Dam Type |
REST |
|
Primary Purpose(s) |
HS |
|
EAP |
Y |
|
Year Completed |
1882 |
|
Year Modified |
0 |
|
Dam Height |
8 ft |
|
Max Storage (ac-ft) |
800 ac-ft |
|
Surface Area (acres) |
265 acres |
|
River Name |
BROAD |
|
Latitude |
34.0333 |
|
Longitude |
-81.0665 |
|
Regulatory Agency(ies) |
FERC |
|
NID Number |
SC01064 |
|
Attachments |
|
